/*
 * Copyright 2017 ~ 2025 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.wl4g.devops.iam.common.mgt;

import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.RememberMeAuthenticationToken;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.subject.SubjectContext;
import org.apache.shiro.web.mgt.DefaultWebSubjectFactory;

/**
 * {@link org.apache.shiro.mgt.SubjectFactory Subject} implementation to be used
 * in CAS-enabled applications.
 *
 * @since 1.2
 */
public class IamSubjectFactory extends DefaultWebSubjectFactory {

	@Override
	public Subject createSubject(SubjectContext context) {
		// the authenticated flag is only set by the SecurityManager after a
		// successful authentication attempt.
		boolean authenticated = context.isAuthenticated();

		// although the SecurityManager 'sees' the submission as a successful
		// authentication, in reality, the
		// login might have been just a CAS rememberMe login. If so, set the
		// authenticated flag appropriately:
		if (authenticated) {
			AuthenticationToken token = context.getAuthenticationToken();
			if (token != null && token instanceof RememberMeAuthenticationToken) {
				RememberMeAuthenticationToken iamCasToken = (RememberMeAuthenticationToken) token;
				// set the authenticated flag of the context to true only if the
				// CAS subject is not in a remember me mode
				if (iamCasToken.isRememberMe()) {
					context.setAuthenticated(false);
				}
			}
		}
		return super.createSubject(context);
	}

}